HOME/OFFICE SECURITY SYSTEM

Description
	The main control circuit is around the microcontroller PIC 16F877A. Home /office security system consists of a sensor circuit to identify the interruption in restricted or secure place. If an interruption is detected a HIGH pulse is sent to a port of the microcontroller. That is identified as an insecure condition. So the controller then sends message of insecure condition and also calls to a predetermined phone number. The optional provision is included to send a message in a specified format to command for unlocking the locked gate.